Sensor test
Remove the coolant temperature sensor and place the measuring part of the sensor in water. While slowly heating the water, measure the resistance of the sensor between pins 1 and 3 of the sensor connector.
Characteristics of ECTS
Temperature | Resistance |
-20°С | 14.130-16.830 kOhm |
0°C | 5790 Ohm |
20°C | 2310-2590 Ohm |
40°С | 1150 ohm |
60°С | 590 ohm |
80°С | 320 ohm |
Wiring check
With the ignition on, measure the voltage between the pins of the wired part of the connector and «weight».
Circuit under test | Rated voltage |
Contact 1 - «weight» | 5 V |
Contact 2 - «weight» | 0 V |
1. «Weight» sensor
2. Not used
3. Air flow signal